All WanLi peptides are manufactured to >99% purity, verified through HPLC-UV testing. Each batch comes with a Certificate of Analysis (COA) showing exact purity levels, typically ranging from 99.5% to 99.9%. We provide third-party verification for all pharmaceutical-grade peptides.

Yes, all our peptides are manufactured in GMP-certified facilities in China. We maintain ISO 9001:2015 quality management certification and follow strict pharmaceutical manufacturing standards. Our facilities undergo regular third-party audits to ensure compliance.

Absolutely! Every batch includes a comprehensive COA with HPLC test results, purity percentage, batch number, manufacturing date, and storage recommendations. You can request COAs before placing orders or contact us via WhatsApp for specific batch documentation.

Lyophilized (freeze-dried) peptides should be stored at -20°C and protected from light and moisture. Once reconstituted with bacteriostatic water, store at 2-8°C (refrigerated) and use within 28 days. Always use sterile technique when handling peptides.

Our MOQ varies by peptide type. For research-grade peptides, the typical MOQ is 10 vials. For bulk pharmaceutical orders, we can accommodate orders starting from 100g. Contact us via WhatsApp for specific MOQ details and volume discounts.

Yes! We offer competitive volume discounts for bulk orders. Discounts typically start at 10% for orders over 100 vials and can go up to 30% for large pharmaceutical contracts. Contact our sales team for a custom quote based on your requirements.

We accept bank wire transfers (T/T), PayPal for smaller orders, and Western Union. For established customers, we can arrange credit terms. Payment terms are typically 50% deposit and 50% before shipment, though flexible terms are available for verified businesses.

Yes! WanLi Peptide offers custom peptide synthesis services. We can synthesize peptides from 5 to 100+ amino acids with modifications including acetylation, amidation, and cyclization. Lead time for custom synthesis is typically 2-4 weeks depending on complexity.

We ship worldwide to over 100 countries including USA, Canada, UK, Australia, EU countries, and throughout Asia. We use express shipping with cold chain logistics to ensure product stability. Shipping restrictions may apply to certain countries.

Express shipping typically takes 5-7 business days to most destinations. We use DHL, FedEx, or EMS depending on your location. All peptides are shipped with ice packs and insulated packaging to maintain cold chain integrity. Tracking information is provided for all orders.

Yes, we have extensive experience with international shipping and customs procedures. We provide all necessary documentation including commercial invoices, packing lists, and certificates. For research institutions, we can provide additional documentation to facilitate customs clearance.

All shipments are fully insured. If peptides arrive damaged or compromised due to shipping conditions, we will replace them at no cost. Simply contact us within 48 hours of delivery with photos of the damaged products and packaging.

Yes! We provide detailed reconstitution protocols with each order. You can also use our online Dosage Calculator tool to determine precise reconstitution volumes and dosing. Our technical team is available via WhatsApp for personalized guidance.

Absolutely! Our scientific team has over 15 years of peptide industry experience. We can recommend appropriate peptides based on your research objectives, discuss purity requirements, and suggest optimal storage and handling protocols. Contact us for a technical consultation.

Yes, we offer comprehensive analytical testing including HPLC, mass spectrometry (MS), amino acid analysis, and endotoxin testing. These services are available for both our products and third-party peptides. Contact us for testing service pricing.

WanLi Peptide has been manufacturing and supplying research-grade peptides since 2008, giving us over 15 years of industry experience. We have served over 500 satisfied customers worldwide including research institutions, pharmaceutical companies, and cosmetic manufacturers.

Our peptides are manufactured as research-grade chemicals for laboratory and research purposes only. They are NOT intended for human consumption, clinical use, or as dietary supplements unless specifically manufactured under pharmaceutical licensing for approved applications.

Yes, WanLi Peptide complies with Chinese GMP standards, ISO certifications, and international chemical trading regulations. We provide all necessary documentation for regulatory compliance and can work with your quality assurance team to meet specific requirements.